//! econ_sim — Settled Reach economics simulation library.
//!
//! Exposes the Layer 1+2+3 tâtonnement simulation as a reusable library crate.
//! The standalone `econ-sim` binary uses the same modules independently.
//!
//! ## Entry points
//!
//! - [`Simulation`] — stateful per-tick runner for server integration (#821).
//!   Initialize once, call `step()` each economy tick.
//!
//! - [`model::run_with_events`] — batch runner (runs N ticks, returns TickRecords).
//!   Used by the standalone binary and stability checks.
//!
//! ## Key decisions
//!
//! - D-178: Economic model architecture (Leontief + tâtonnement + agents)
//! - D-180: Event input port (`EconEvent`, `EventPort`)
//! - D-181: 7-signal vocabulary per active node

pub mod agents;
pub mod currency;
pub mod db;
pub mod events;
pub mod model;
pub mod prng;
pub mod seed;
pub mod trade;

mod sim;
pub use sim::Simulation;